MILWAUKEE (AP) Scores of protesters who surrounded the main entrance to the Bradley Center in Milwaukee, demanding justice for a black man who was killed by a white police officer, have now retreated back to the street.

Dozens of police formed a path through the protesters with their bodies to allow Bucks fans to enter the arena Tuesday night. After the protesters dropped back, chanting ``black lives matter,'' officers formed a line to guard the main entrance.

The demonstrators marched to the arena from the park where 31-year-old Dontre Hamiton was shot by officer Christopher Manney in April.

The protests follow Monday's announcement by Milwaukee County District Attorney John Chisholm that Manney would face no criminal charges.

Around 75 protesters gathered in the park, chanting ``No justice, no compromise'' before the march.